#2B645D
Closest named color: Dark Green Blue (#1F6357). oklch(46.3% 0.061 184.6), rgb(43, 100, 93).
Aa
White text reads best on this color (6.81:1).
About this color
#2B645D is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.061 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.014 away. White text reads best on it, at 6.81:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 3.08:1 |
| White text | 6.81:1 |
Values
| HEX | #2B645D |
| RGB | rgb(43, 100, 93) |
| HSL | hsl(173, 40%, 28%) |
| OKLCH | oklch(46.3% 0.061 184.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #2B645D | 6.81:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #2B645D | 3.08:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #2B645D text on white | 6.81:1 | AA | Lc 83.3 | Fine for body text |
| #2B645D text on black | 3.08:1 | AA large text | Lc -18.6 | Dividers and decoration only |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 700.
-
Step 50
50
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CEDDDA
oklch(88.5% 0.017 182.7)
-
Step 300
300
#ACC7C3
oklch(80.8% 0.03 185.8)
-
Step 400
400
#80ABA4
oklch(70.8% 0.047 183.9)
-
Step 500
500
#5E968E
oklch(63.2% 0.06 184.4)
-
Step 600
600
#428078
oklch(55.6% 0.066 184.7)
-
Step 700
700 (this color)
#2B645D
oklch(46.3% 0.061 184.6)
-
Step 800
800
#2C5852
oklch(42.7% 0.05 184.1)
-
Step 900
900
#284944
oklch(37.8% 0.04 183.4)
-
Step 950
950
#182A28
oklch(26.9% 0.024 187)
#2B645D with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #5F5F5D | 0.064 |
| Deuteranopia (no green cones) | #56585E | 0.061 |
| Tritanopia (no blue cones) | #036662 | 0.019 |
| Achromatopsia (no color) | #5B5B5B | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B645D
#2B645D
oklch(46.3% 0.061 184.6)
- #764A54
#764A54
oklch(46.2% 0.061 4.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #2B645D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.014
- Dark Aqua #05696B ΔE 0.026
- Petrol #005F6A ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.048
- Deep Turquoise #017374 ΔE 0.049
- Deep Teal #00555A ΔE 0.058
- Slate #516572 ΔE 0.058
- Pine #2B5D34 ΔE 0.061
Use #2B645D in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.